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https://da-tenshi.github.io/Speedman/{ "lighthouseVersion": "10.1.1", "requestedUrl": "https://da-tenshi.github.io/Speedman/", "mainDocumentUrl": "https://da-tenshi.github.io/Speedman/", "finalDisplayedUrl": "https://da-tenshi.github.io/Speedman/", "finalUrl": "https://da-tenshi.github.io/Speedman/", "fetchTime": "2023-06-09T08:45:04.244Z", "gatherMode": "navigation", "runWarnings": [ "No ads were requested when fetching this page.", "No ads were rendered when rendering this page.", "The GPT tag was not requested." ], "userAgent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36", "environment": { "networkUserAgent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.0.0 Safari/537.36", "hostUserAgent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36", "benchmarkIndex": 1099.5, "credits": { "axe-core": "4.6.3" } }, "audits": { "is-on-https": { "id": "is-on-https", "title": "HTTPS を使用しています", "description": "すべてのサイトは、機密性の高い情報を扱っていない場合でも、HTTPS で保護する必要があります。たとえば、[混合コンテンツ](https://developers.google.com/web/fundamentals/security/prevent-mixed-content/what-is-mixed-content)（HTTPS で送信されたリクエストに対して一部のリソースを HTTP で読み込む）などは使用しないようにします。HTTPS は、侵入者があなたのアプリとユーザー間の通信を改ざんしたり、傍受したりするのを防ぎます。HTTPS は、HTTP/2 や多くの新しいウェブ プラットフォーム API を使用するための前提条件となります。[HTTPS についての詳細](https://developer.chrome.com/docs/lighthouse/pwa/is-on-https/)", "score": 1, "scoreDisplayMode": "binary", "details": { "type": "table", "headings": [], "items": [] } }, "service-worker": { "id": "service-worker", "title": "ページと `start_url` を制御する Service Worker が登録されていません", "description": "Service Worker は、多くのプログレッシブ ウェブアプリ機能（オフライン、ホーム画面への追加、プッシュ通知など）をアプリで使用できるようにするための技術です。[Service Worker の詳細](https://developer.chrome.com/docs/lighthouse/pwa/service-worker/)", "score": 0, "scoreDisplayMode": "binary" }, "viewport": { "id": "viewport", "title": "`width` または `initial-scale` を指定した `` タグがありません", "description": "`` を使用すると、モバイル画面サイズ向けにアプリを最適化できるほか、[ユーザー入力の遅延を 300 ミリ秒](https://developer.chrome.com/blog/300ms-tap-delay-gone-away/)短縮できます。[ビューポート メタタグの使用の詳細](https://developer.chrome.com/docs/lighthouse/pwa/viewport/)", "score": 0, "scoreDisplayMode": "binary", "explanation": "`` タグが見つかりません" }, "first-contentful-paint": { "id": "first-contentful-paint", "title": "First Contentful Paint", "description": "First Contentful Paint は、テキストまたは画像が初めてペイントされるまでにかかった時間です。[First Contentful Paint の指標の詳細](https://developer.chrome.com/docs/lighthouse/performance/first-contentful-paint/)", "score": 1, "scoreDisplayMode": "numeric", "numericValue": 431.5694, "numericUnit": "millisecond", "displayValue": "0.4 秒" }, "largest-contentful-paint": { "id": "largest-contentful-paint", "title": "Largest Contentful Paint", "description": "Largest Contentful Paint は、最も大きなテキストまたは画像が描画されるまでにかかった時間です。[Largest Contentful Paint 指標の詳細](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)", "score": 1, "scoreDisplayMode": "numeric", "numericValue": 485.5694, "numericUnit": "millisecond", "displayValue": "0.5 秒" }, "first-meaningful-paint": { "id": "first-meaningful-paint", "title": "First Meaningful Paint", "description": "First Meaningful Paint は、ページの主要なコンテンツが可視化されるまでにかかった時間です。[First Meaningful Paint の指標の詳細](https://developer.chrome.com/docs/lighthouse/performance/first-meaningful-paint/)", "score": 1, "scoreDisplayMode": "numeric", "numericValue": 485.5694, "numericUnit": "millisecond", "displayValue": "0.5 秒" }, "speed-index": { "id": "speed-index", "title": "Speed Index", "description": "Speed Index は、ページのコンテンツが取り込まれて表示される速さを表します。[Speed Index の指標の詳細](https://developer.chrome.com/docs/lighthouse/performance/speed-index/)", "score": 1, "scoreDisplayMode": "numeric", "numericValue": 479.61345601356953, "numericUnit": "millisecond", "displayValue": "0.5 秒" }, "screenshot-thumbnails": { "id": "screenshot-thumbnails", "title": "Screenshot Thumbnails", "description": "This is what the load of your site looked like.", "score": null, "scoreDisplayMode": "informative", "details": { "type": "filmstrip", "scale": 3000, "items": [ { "timing": 375, "timestamp": 77480610029, "data": 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} }, "total-blocking-time": { "id": "total-blocking-time", "title": "Total Blocking Time", "description": "タスクの処理時間が 50 ミリ秒を上回った場合の、コンテンツの初回ペイントから操作可能になるまでの合計時間（ミリ秒）です。[Total Blocking Time の指標の詳細](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-total-blocking-time/)", "score": 1, "scoreDisplayMode": "numeric", "numericValue": 13.5, "numericUnit": "millisecond", "displayValue": "10 ミリ秒" }, "max-potential-fid": { "id": "max-potential-fid", "title": "初回入力遅延の最大推定時間", "description": "初回入力遅延の最大推定時間は、ユーザーが最も長いタスクを行うのにかかると推定される時間です。[Maximum Potential First Input Delay 指標の詳細](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-max-potential-fid/)", "score": 1, "scoreDisplayMode": "numeric", "numericValue": 59, "numericUnit": "millisecond", "displayValue": "60 ミリ秒" }, "cumulative-layout-shift": { "id": "cumulative-layout-shift", "title": "Cumulative Layout Shift", "description": "Cumulative Layout Shift はビューポート内の視覚要素がどのくらい移動しているかを測定する指標です。[Cumulative Layout Shift 指標の詳細](https://web.dev/cls/)", "score": 1, "scoreDisplayMode": "numeric", "numericValue": 0, "numericUnit": "unitless", "displayValue": "0", "details": { "type": "debugdata", "items": [ { "cumulativeLayoutShiftMainFrame": 0, "totalCumulativeLayoutShift": 0 } ] } }, "errors-in-console": { "id": "errors-in-console", "title": "コンソールに記録されたブラウザのエラーはありません", "description": "コンソールに記録されたエラーは未解決の問題を表します。これらはネットワーク リクエストの失敗や他のブラウザの問題が原因で表示される可能性があります。[コンソールの診断監査でのこのエラーの詳細](https://developer.chrome.com/docs/lighthouse/best-practices/errors-in-console/)", "score": 1, "scoreDisplayMode": "binary", "details": { "type": "table", "headings": [], "items": [] } }, "server-response-time": { "id": "server-response-time", "title": "最初のサーバー応答時間は問題ない速さです", "description": "メイン ドキュメントのサーバー応答時間は、他のすべてのリクエストに影響するため、速くする必要があります。[Time to First Byte 指標の詳細](https://developer.chrome.com/docs/lighthouse/performance/time-to-first-byte/)", "score": 1, "scoreDisplayMode": "binary", "numericValue": 172.896, "numericUnit": "millisecond", "displayValue": "ルート ドキュメントの読み込みに 170 ミリ秒かかりました", "details": { "type": "opportunity", "headings": [ { "key": "url", "valueType": "url", "label": "URL" }, { "key": "responseTime", "valueType": "timespanMs", "label": "かかった時間" } ], "items": [ { "url": "https://da-tenshi.github.io/Speedman/", "responseTime": 172.896 } ], "overallSavingsMs": 72.89599999999999 } }, "interactive": { "id": "interactive", "title": "Time to Interactive", "description": "操作可能になるまでの時間とは、ページが完全に操作可能になるのに要する時間です。[操作可能になるまでの時間の指標についての詳細](https://developer.chrome.com/docs/lighthouse/performance/interactive/)", "score": 1, "scoreDisplayMode": "numeric", "numericValue": 612.0694, "numericUnit": "millisecond", "displayValue": "0.6 秒" }, "user-timings": { "id": "user-timings", "title": "カスタム速度の記録と計測", "description": "User Timing API を使用してアプリを計測可能にし、主要なユーザー エクスペリエンスでのアプリの実際のパフォーマンスを測定できるようにしてください。[カスタム速度マークの詳細](https://developer.chrome.com/docs/lighthouse/performance/user-timings/)", "score": null, "scoreDisplayMode": "notApplicable", "details": { "type": "table", "headings": [], "items": [] } }, "critical-request-chains": { "id": "critical-request-chains", "title": "クリティカル リクエスト チェーンを回避してください", "description": "下のクリティカル リクエスト チェーンでは、高い優先度で読み込まれたリソースを確認できます。チェーンの長さを縮小する、リソースのダウンロード サイズを抑える、不要なリソースのダウンロードを遅らせるなどの手段を行って、ページの読み込み速度を改善することをご検討ください。[重要なリクエストのチェーンを回避する方法の詳細](https://developer.chrome.com/docs/lighthouse/performance/critical-request-chains/)", "score": null, "scoreDisplayMode": "notApplicable", "displayValue": "", "details": { "type": "criticalrequestchain", "chains": { "0F0ADC816B8D7E604E382928699143D1": { "request": { "url": "https://da-tenshi.github.io/Speedman/", "startTime": 77480.241137, "endTime": 77480.420086, "responseReceivedTime": 77480.41778300001, "transferSize": 41533 } } }, "longestChain": { "duration": 178.9489999860525, "length": 1, "transferSize": 41533 } } }, "redirects": { "id": "redirects", "title": "複数のページ リダイレクトの回避", "description": "リダイレクトを行うと、ページの読み込みにさらに時間がかかる可能性があります。[ページ リダイレクトの回避方法の詳細](https://developer.chrome.com/docs/lighthouse/performance/redirects/)", "score": 1, "scoreDisplayMode": "numeric", "numericValue": 0, "numericUnit": "millisecond", "displayValue": "", "details": { "type": "opportunity", "headings": [], "items": [], "overallSavingsMs": 0 } }, "installable-manifest": { "id": "installable-manifest", "title": "ウェブアプリ マニフェストまたは Service Worker がインストール可能となる要件を満たしていません", "description": "Service Worker は、多くのプログレッシブ ウェブアプリ機能（オフライン、ホーム画面への追加、プッシュ通知など）をアプリで使用できるようにするための技術です。適切な Service Worker とマニフェストの実装により、ホーム画面にアプリを追加するようユーザーに促すメッセージをブラウザに自動的に表示でき、これによりエンゲージメントを高めることができます。[マニフェストのインストール要件の詳細](https://developer.chrome.com/docs/lighthouse/pwa/installable-manifest/)", "score": 0, "scoreDisplayMode": "binary", "numericValue": 1, "numericUnit": "element", "displayValue": "理由: 1 件", "warnings": [], "details": { "type": "table", "headings": [ { "key": "reason", "valueType": "text", "label": "失敗の理由" } ], "items": [ { "reason": "ページにマニフェストの URL がありません" } ], "debugData": { "type": "debugdata", "manifestUrl": null } } }, "splash-screen": { "id": "splash-screen", "title": "カスタムのスプラッシュ画面が設定されていません", "description": "テーマのあるスプラッシュ画面を設定すると、ホーム画面からのアプリの起動時に、質の良いアプリであることをユーザーにアピールできます。[スプラッシュ画面の詳細](https://developer.chrome.com/docs/lighthouse/pwa/splash-screen/)", "score": 0, "scoreDisplayMode": "binary", "explanation": "Failures: No manifest was fetched.", "details": { "type": "debugdata", "items": [ { "failures": [ "No manifest was fetched" ], "isParseFailure": true, "parseFailureReason": "No manifest was fetched" } ] } }, "themed-omnibox": { "id": "themed-omnibox", "title": "アドレスバーにテーマの色が設定されていません。", "description": "ブラウザのアドレスバーにサイトに合わせたテーマを設定できます。[アドレスバーのテーマ設定の詳細](https://developer.chrome.com/docs/lighthouse/pwa/themed-omnibox/)", "score": 0, "scoreDisplayMode": "binary", "explanation": "Failures: No manifest was fetched,\nNo `` tag found.", "details": { "type": "debugdata", "items": [ { "failures": [ "No manifest was fetched", "No `` tag found" ], "themeColor": null, "isParseFailure": true, "parseFailureReason": "No manifest was fetched" } ] } }, "maskable-icon": { "id": "maskable-icon", "title": "マニフェストにマスク可能なアイコンは含まれていません", "description": "マスク可能なアイコンでは、アプリをデバイスにインストールする際に、画像がレターボックス化されることなく図形全体を埋められます。[マスク可能なマニフェストのアイコンの詳細](https://developer.chrome.com/docs/lighthouse/pwa/maskable-icon-audit/)", "score": 0, "scoreDisplayMode": "binary", "explanation": "No manifest was fetched" }, "content-width": { "id": "content-width", "title": "コンテンツのサイズとビューポートのサイズが一致しています", "description": "アプリのコンテンツの幅がビューポートの幅と一致しない場合、アプリがモバイル画面に合わせて最適化されない可能性があります。[ビューポートのコンテンツのサイズ変更方法の詳細](https://developer.chrome.com/docs/lighthouse/pwa/content-width/)", "score": null, "scoreDisplayMode": "notApplicable" }, "image-aspect-ratio": { "id": "image-aspect-ratio", "title": "正しいアスペクト比の画像が表示されています", "description": "画像は本来のアスペクト比で表示する必要があります。[画像のアスペクト比についての詳細](https://developer.chrome.com/docs/lighthouse/best-practices/image-aspect-ratio/)", "score": 1, "scoreDisplayMode": "binary", "details": { "type": "table", "headings": [], "items": [] } }, "image-size-responsive": { "id": "image-size-responsive", "title": "画像が適切な解像度で表示されています", "description": "画像をできるだけ鮮明に表示するには、画像の実サイズを、表示するサイズとピクセル比に比例させる必要があります。[レスポンシブな画像の表示方法の詳細](https://web.dev/serve-responsive-images/)", "score": 1, "scoreDisplayMode": "binary", "details": { "type": "table", "headings": [], "items": [] } }, "preload-fonts": { "id": "preload-fonts", "title": "`font-display: optional` を使用するフォントがプリロードされています", "description": "`optional` のフォントをプリロードすると、初めてのユーザーも使用できます。[フォントのプリロードの詳細](https://web.dev/preload-optional-fonts/)", "score": null, "scoreDisplayMode": "notApplicable" }, "deprecations": { "id": "deprecations", "title": "サポートを終了した API は使用されていません", "description": "非推奨の API は最終的にブラウザから削除されます。[非推奨 API の詳細](https://developer.chrome.com/docs/lighthouse/best-practices/deprecations/)", "score": 1, "scoreDisplayMode": "binary", "details": { "type": "table", "headings": [], "items": [] } }, "mainthread-work-breakdown": { "id": "mainthread-work-breakdown", "title": "メインスレッド処理の最小化", "description": "JavaScript の解析、コンパイル、実行にかかる時間を短縮することをご検討ください。JavaScript ペイロードのサイズを抑えるなどの方法があります。[メインスレッドでの作業を最小限に抑える方法の詳細](https://developer.chrome.com/docs/lighthouse/performance/mainthread-work-breakdown/)", "score": 1, "scoreDisplayMode": "numeric", "numericValue": 487.48300000000006, "numericUnit": "millisecond", "displayValue": "0.5 秒", "details": { "type": "table", "headings": [ { "key": "groupLabel", "valueType": "text", "label": "カテゴリ" }, { "key": "duration", "valueType": "ms", "granularity": 1, "label": "かかった時間" } ], "items": [ { "group": "styleLayout", "groupLabel": "Style & Layout", "duration": 305.05999999999995 }, { "group": "other", "groupLabel": "Other", "duration": 64.63700000000004 }, { "group": "scriptEvaluation", "groupLabel": "Script Evaluation", "duration": 62.928000000000054 }, { "group": "paintCompositeRender", "groupLabel": "Rendering", "duration": 25.474999999999998 }, { "group": "scriptParseCompile", "groupLabel": "Script Parsing & Compilation", "duration": 20.481 }, { "group": "parseHTML", "groupLabel": "Parse HTML & CSS", "duration": 8.902 } ], "sortedBy": [ "duration" ] } }, "bootup-time": { "id": "bootup-time", "title": "JavaScript の実行にかかる時間", "description": "JavaScript の解析、コンパイル、実行にかかる時間の短縮をご検討ください。JavaScript ペイロードのサイズを抑えるなどの方法があります。[JavaScript の実行時間を短縮する方法の詳細](https://developer.chrome.com/docs/lighthouse/performance/bootup-time/)", "score": 1, "scoreDisplayMode": "numeric", "numericValue": 42.02100000000001, "numericUnit": "millisecond", "displayValue": "0.0 秒", "details": { "type": "table", "headings": [ { "key": "url", "valueType": "url", "label": "URL" }, { "key": "total", "granularity": 1, "valueType": "ms", "label": "合計 CPU 時間" }, { "key": "scripting", "granularity": 1, "valueType": "ms", "label": "スクリプトの評価" }, { "key": "scriptParseCompile", "granularity": 1, "valueType": "ms", "label": "スクリプトの解析" } ], "items": [ { "url": "https://da-tenshi.github.io/Speedman/", "total": 419.864, "scripting": 36.64200000000001, "scriptParseCompile": 5.3790000000000004 } ], "summary": { "wastedMs": 42.02100000000001 }, "sortedBy": [ "total" ] } }, "uses-rel-preload": { "id": "uses-rel-preload", "title": "キー リクエストのプリロード", "description": "`` を使用して、ページ読み込みの後のほうで現在リクエストしているリソースを優先的に取得することをご検討ください。[主要なリクエストをプリロードする方法の詳細](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preload/)", "score": null, "scoreDisplayMode": "notApplicable", "details": { "type": "opportunity", "headings": [], "items": [], "overallSavingsMs": 0 } }, "uses-rel-preconnect": { "id": "uses-rel-preconnect", "title": "必須のドメインへの事前接続", "description": "重要な第三者ドメインへの接続を早期に確立できるように、`preconnect` または `dns-prefetch` のリソースヒントを追加することを検討してください。[必要なオリジンに事前接続する方法の詳細](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/)", "score": 1, "scoreDisplayMode": "numeric", "numericValue": 0, "numericUnit": "millisecond", "displayValue": "", "warnings": [], "details": { "type": "opportunity", "headings": [], "items": [], "overallSavingsMs": 0, "sortedBy": [ "wastedMs" ] } }, "font-display": { "id": "font-display", "title": "ウェブフォント読み込み中の全テキストの表示", "description": "`font-display` の CSS 機能を使用して、Web フォントの読み込み中にユーザーがテキストを読めるようにしてください。[`font-display` の詳細](https://developer.chrome.com/docs/lighthouse/performance/font-display/)", "score": 1, "scoreDisplayMode": "binary", "warnings": [], "details": { "type": "table", "headings": [], "items": [] } }, "diagnostics": { "id": "diagnostics", "title": "Diagnostics", "description": "Collection of useful page vitals.", "score": null, "scoreDisplayMode": "informative", "details": { "type": "debugdata", "items": [ { "numRequests": 1, "numScripts": 0, "numStylesheets": 0, "numFonts": 0, "numTasks": 294, "numTasksOver10ms": 6, "numTasksOver25ms": 4, "numTasksOver50ms": 3, "numTasksOver100ms": 2, "numTasksOver500ms": 0, "rtt": 0.3266, "throughput": 144274425.5049183, "maxRtt": 0.3266, "maxServerLatency": 172.56939999999997, "totalByteWeight": 41533, "totalTaskTime": 487.48299999999995, "mainDocumentTransferSize": 41533 } ] } }, "network-requests": { "id": "network-requests", "title": "Network Requests", "description": "Lists the network requests that were made during page load.", "score": null, "scoreDisplayMode": "informative", "details": { "type": "table", "headings": [ { "key": "url", "valueType": "url", "label": "URL" }, { "key": "protocol", "valueType": "text", "label": "Protocol" }, { "key": "networkRequestTime", "valueType": "ms", "granularity": 1, "label": "Network Request Time" }, { "key": "networkEndTime", "valueType": "ms", "granularity": 1, "label": "Network End Time" }, { "key": "transferSize", "valueType": "bytes", "displayUnit": "kb", "granularity": 1, "label": "Transfer Size" }, { "key": "resourceSize", "valueType": "bytes", "displayUnit": "kb", "granularity": 1, "label": "Resource Size" }, { "key": "statusCode", "valueType": "text", "label": "Status Code" }, { "key": "mimeType", "valueType": "text", "label": "MIME Type" }, { "key": "resourceType", "valueType": "text", "label": "Resource Type" } ], "items": [ { "url": "https://da-tenshi.github.io/Speedman/", "protocol": "h2", "rendererStartTime": 0, "networkRequestTime": 4.16100001335144, "networkEndTime": 183.10999999940395, "finished": true, "transferSize": 41533, "resourceSize": 283175, "statusCode": 200, "mimeType": "text/html", "resourceType": "Document", "priority": "VeryHigh", "experimentalFromMainFrame": true } ], "debugData": { "type": "debugdata", "networkStartTimeTs": 77480236976 } } }, "network-rtt": { "id": "network-rtt", "title": "ネットワークのラウンドトリップ時間", "description": "ネットワークのラウンド トリップ時間（RTT）はパフォーマンスに大きく影響します。オリジンへの RTT が高い場合は、サーバーの場所をユーザーの近くにするとパフォーマンスを改善できることを示しています。[ラウンド トリップ時間の詳細](https://hpbn.co/primer-on-latency-and-bandwidth/)", "score": null, "scoreDisplayMode": "informative", "numericValue": 0.3266, "numericUnit": "millisecond", "displayValue": "0 ミリ秒", "details": { "type": "table", "headings": [ { "key": "origin", "valueType": "text", "label": "URL" }, { "key": "rtt", "valueType": "ms", "granularity": 1, "label": "かかった時間" } ], "items": [ { "origin": "https://da-tenshi.github.io", "rtt": 0.3266 } ], "sortedBy": [ "rtt" ] } }, "network-server-latency": { "id": "network-server-latency", "title": "サーバーのバックエンド待ち時間", "description": "サーバーの待ち時間はウェブ パフォーマンスに影響することがあります。オリジンのサーバー レイテンシが高い場合は、サーバーが過負荷であるか、サーバーのバックエンド パフォーマンスが低いことを示しています。[サーバー応答時間の詳細](https://hpbn.co/primer-on-web-performance/#analyzing-the-resource-waterfall)", "score": null, "scoreDisplayMode": "informative", "numericValue": 172.56939999999997, "numericUnit": "millisecond", "displayValue": "170 ミリ秒", "details": { "type": "table", "headings": [ { "key": "origin", "valueType": "text", "label": "URL" }, { "key": "serverResponseTime", "valueType": "ms", "granularity": 1, "label": "かかった時間" } ], "items": [ { "origin": "https://da-tenshi.github.io", "serverResponseTime": 172.56939999999997 } ], "sortedBy": [ "serverResponseTime" ] } }, "main-thread-tasks": { "id": "main-thread-tasks", "title": "Tasks", "description": "Lists the toplevel main thread tasks that executed during page load.", "score": null, "scoreDisplayMode": "informative", "details": { "type": "table", "headings": [ { "key": "startTime", "valueType": "ms", "granularity": 1, "label": "Start Time" }, { "key": "duration", "valueType": "ms", "granularity": 1, "label": "End Time" } ], "items": [ { "duration": 22.519, "startTime": 190.279 }, { "duration": 18.362, "startTime": 214.005 }, { "duration": 97.007, "startTime": 237.776 }, { "duration": 118.943, "startTime": 344.802 }, { "duration": 5.951, "startTime": 464.085 }, { "duration": 118.611, "startTime": 470.907 }, { "duration": 26.621, "startTime": 589.578 }, { "duration": 9.308, "startTime": 622.366 }, { "duration": 7.073, "startTime": 634.649 } ] } }, "metrics": { "id": "metrics", "title": "Metrics", "description": "Collects all available metrics.", "score": null, "scoreDisplayMode": "informative", "numericValue": 612, "numericUnit": "millisecond", "details": { "type": "debugdata", "items": [ { "firstContentfulPaint": 432, "firstMeaningfulPaint": 486, "largestContentfulPaint": 486, "interactive": 612, "speedIndex": 480, "totalBlockingTime": 14, "maxPotentialFID": 59, "cumulativeLayoutShift": 0, "cumulativeLayoutShiftMainFrame": 0, "totalCumulativeLayoutShift": 0, "observedTimeOrigin": 0, "observedTimeOriginTs": 77480235029, "observedNavigationStart": 0, "observedNavigationStartTs": 77480235029, "observedFirstPaint": 418, "observedFirstPaintTs": 77480652951, "observedFirstContentfulPaint": 418, "observedFirstContentfulPaintTs": 77480652951, "observedFirstContentfulPaintAllFrames": 418, "observedFirstContentfulPaintAllFramesTs": 77480652951, "observedFirstMeaningfulPaint": 418, "observedFirstMeaningfulPaintTs": 77480652951, "observedLargestContentfulPaint": 418, "observedLargestContentfulPaintTs": 77480652951, "observedLargestContentfulPaintAllFrames": 418, "observedLargestContentfulPaintAllFramesTs": 77480652951, "observedTraceEnd": 2991, "observedTraceEndTs": 77483226506, "observedLoad": 617, "observedLoadTs": 77480852372, "observedDomContentLoaded": 465, "observedDomContentLoadedTs": 77480700228, "observedCumulativeLayoutShift": 0, "observedCumulativeLayoutShiftMainFrame": 0, "observedTotalCumulativeLayoutShift": 0, "observedFirstVisualChange": 368, "observedFirstVisualChangeTs": 77480603029, "observedLastVisualChange": 368, "observedLastVisualChangeTs": 77480603029, "observedSpeedIndex": 368, "observedSpeedIndexTs": 77480603140 }, { "lcpInvalidated": false } ] } }, "performance-budget": { "id": "performance-budget", "title": "パフォーマンス予算", "description": "ネットワーク リクエストの数とサイズが、指定したパフォーマンス バジェットの設定目標内に収まるよう維持します。[パフォーマンス バジェットの詳細](https://developers.google.com/web/tools/lighthouse/audits/budgets)", "score": null, "scoreDisplayMode": "notApplicable" }, "timing-budget": { "id": "timing-budget", "title": "タイミング予算", "description": "タイミング予算を設定すると、サイトのパフォーマンス管理に役立ちます。パフォーマンスが高いサイトは読み込みが早く、ユーザーの入力イベントにすばやく応答できます。[パフォーマンス バジェットの詳細](https://developers.google.com/web/tools/lighthouse/audits/budgets)", "score": null, "scoreDisplayMode": "notApplicable" }, "resource-summary": { "id": "resource-summary", "title": "リクエスト数を少なく、転送サイズを小さく維持してください", "description": "ページリソースの数とサイズの予算を設定するには、budget.json ファイルを追加します。[パフォーマンス バジェットの詳細](https://web.dev/use-lighthouse-for-performance-budgets/)", "score": null, "scoreDisplayMode": "informative", "displayValue": "1 件のリクエスト • 41 KiB", "details": { "type": "table", "headings": [ { "key": "label", "valueType": "text", "label": "リソースの種類" }, { "key": "requestCount", "valueType": "numeric", "label": "リクエスト" }, { "key": "transferSize", "valueType": "bytes", "label": "転送サイズ" } ], "items": [ { "resourceType": "document", "label": "ドキュメント", "requestCount": 1, "transferSize": 41533 }, { "resourceType": "total", "label": "合計", "requestCount": 1, "transferSize": 41533 }, { "resourceType": "stylesheet", "label": "スタイルシート", "requestCount": 0, "transferSize": 0 }, { "resourceType": "image", "label": "画像", "requestCount": 0, "transferSize": 0 }, { "resourceType": "media", "label": "メディア", "requestCount": 0, "transferSize": 0 }, { "resourceType": "font", "label": "フォント", "requestCount": 0, "transferSize": 0 }, { "resourceType": "script", "label": "スクリプト", "requestCount": 0, "transferSize": 0 }, { "resourceType": "other", "label": "その他", "requestCount": 0, "transferSize": 0 }, { "resourceType": "third-party", "label": "第三者", "requestCount": 1, "transferSize": 41533 } ] } }, "third-party-summary": { "id": "third-party-summary", "title": "第三者の使用の最小化", "description": "サードパーティのコードによって、読み込み速度が著しく低下する可能性があります。重複するサードパーティ プロバイダの数を制限したうえで、ページのメインの部分を読み込み終えた後にサードパーティのコードを読み込んでみてください。[サードパーティの影響を最小限に抑える方法の詳細](https://developers.google.com/web/fundamentals/performance/optimizing-content-efficiency/loading-third-party-javascript/)", "score": null, "scoreDisplayMode": "notApplicable" }, "third-party-facades": { "id": "third-party-facades", "title": "ファサードでのサードパーティ リソースの遅延読み込み", "description": "一部のサードパーティ埋め込みは遅延読み込みできます。必要になるまで、ファサードと置き換えることをご検討ください。[ファサードでサードパーティを保留にする方法の詳細](https://developer.chrome.com/docs/lighthouse/performance/third-party-facades/)", "score": null, "scoreDisplayMode": "notApplicable" }, "largest-contentful-paint-element": { "id": "largest-contentful-paint-element", "title": "「最大コンテンツの描画」要素", "description": "ビューポート内で描画された最大のコンテンツ要素です。[Largest Contentful Paint 要素の詳細](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)", "score": null, "scoreDisplayMode": "informative", "displayValue": "1 件の要素が見つかりました", "details": { "type": "table", "headings": [ { "key": "node", "valueType": "node", "label": "要素" } ], "items": [ { "node": { "type": "node", "lhId": "page-0-P", "path": "1,HTML,1,BODY,0,P", "selector": "body > p", "boundingRect": { "top": 16, "bottom": 32, "left": 8, "right": 1357, "width": 1349, "height": 16 }, "snippet": "

", "nodeLabel": "1110011010111100101011111110100010010001100001101110100010010100101001101110100…" } } ] } }, "lcp-lazy-loaded": { "id": "lcp-lazy-loaded", "title": "Largest Contentful Paint の画像は遅延読み込みされていません", "description": "スクロールせずに見える範囲にある画像が遅延読み込みによってページのライフサイクルの後半にレンダリングされると、Largest Contentful Paint の遅延につながります。[最適な遅延読み込みの詳細](https://web.dev/lcp-lazy-loading/)", "score": null, "scoreDisplayMode": "notApplicable" }, "layout-shift-elements": { "id": "layout-shift-elements", "title": "レイアウトが大きく変わらないようにする", "description": "ページの CLS への影響が特に大きい DOM 要素です。[CLS を改善する方法について](https://web.dev/optimize-cls/)", "score": null, "scoreDisplayMode": "notApplicable", "details": { "type": "table", "headings": [], "items": [] } }, "long-tasks": { "id": "long-tasks", "title": "メインスレッドでタスクが長時間実行されないようにしてください", "description": "メインスレッドで長時間実行されているタスクを表示します。入力の遅延に最も影響しているタスクを特定する際に役立ちます。[長いメインスレッド タスクの回避方法の詳細](https://web.dev/long-tasks-devtools/)", "score": null, "scoreDisplayMode": "informative", "displayValue": "長時間実行されているタスクが 2 件見つかりました", "details": { "type": "table", "headings": [ { "key": "url", "valueType": "url", "label": "URL" }, { "key": "startTime", "valueType": "ms", "granularity": 1, "label": "開始時間" }, { "key": "duration", "valueType": "ms", "granularity": 1, "label": "継続時間" } ], "items": [ { "url": "https://da-tenshi.github.io/Speedman/", "duration": 59, "startTime": 503.5694 }, { "url": "https://da-tenshi.github.io/Speedman/", "duration": 59, "startTime": 562.5694 } ], "sortedBy": [ "duration" ], "skipSumming": [ "startTime" ] } }, "no-unload-listeners": { "id": "no-unload-listeners", "title": "`unload` イベントのリスナーの回避", "description": "`unload` イベントの発生は安定していないため、これをリッスンするとブラウザの最適化機能（バックフォワード キャッシュなど）が妨げられる可能性があります。代わりに `pagehide` または `visibilitychange` イベントを使用してください。[アンロード イベント リスナーの詳細](https://web.dev/bfcache/#never-use-the-unload-event)", "score": 1, "scoreDisplayMode": "binary" }, "non-composited-animations": { "id": "non-composited-animations", "title": "合成されていないアニメーションは使用しないでください", "description": "合成されていないアニメーションは動きが不自然になり、CLS が大きくなることがあります。[合成されていないアニメーションを避ける方法の詳細](https://developer.chrome.com/docs/lighthouse/performance/non-composited-animations/)", "score": null, "scoreDisplayMode": "notApplicable", "details": { "type": "table", "headings": [], "items": [] } }, "unsized-images": { "id": "unsized-images", "title": "画像要素で `width` と `height` が明示的に指定されている", "description": "画像要素で幅と高さを明示的に設定すると、レイアウト シフトを減らして、CLS を改善できます。[画像サイズの設定方法の詳細](https://web.dev/optimize-cls/#images-without-dimensions)", "score": null, "scoreDisplayMode": "notApplicable", "details": { "type": "table", "headings": [], "items": [] } }, "valid-source-maps": { "id": "valid-source-maps", "title": "ページで有効なソースマップが使用されています", "description": "ソースマップは軽量化したコードを元のソースコードに変換するもので、デベロッパーが本番環境でデバッグする際に役立ちます。また、Lighthouse で詳しい分析情報を提供することも可能になります。このようなメリットをふまえ、ソースマップの導入をご検討ください。[ソースマップの詳細](https://developer.chrome.com/docs/devtools/javascript/source-maps/)", "score": 1, "scoreDisplayMode": "binary", "details": { "type": "table", "headings": [], "items": [] } }, "prioritize-lcp-image": { "id": "prioritize-lcp-image", "title": "Largest Contentful Paint の画像のプリロード", "description": "LCP 要素がページに動的に追加された場合、LCP を改善するため画像をプリロードする必要があります。[LCP 要素のプリロードの詳細](https://web.dev/optimize-lcp/#optimize-when-the-resource-is-discovered)", "score": null, "scoreDisplayMode": "notApplicable" }, "csp-xss": { "id": "csp-xss", "title": "CSP が XSS 攻撃を防げるよう設定されているか確認する", "description": "厳格なコンテンツ セキュリティ ポリシー（CSP）を設定すると、クロスサイト スクリプティング（XSS）攻撃のリスクを大幅に軽減できます。[CSP を使用して XSS を防ぐ方法の詳細](https://developer.chrome.com/docs/lighthouse/best-practices/csp-xss/)", "score": null, "scoreDisplayMode": "informative", "details": { "type": "table", "headings": [ { "key": "description", "valueType": "text", "subItemsHeading": { "key": "description" }, "label": "説明" }, { "key": "directive", "valueType": "code", "subItemsHeading": { "key": "directive" }, "label": "ディレクティブ" }, { "key": "severity", "valueType": "text", "subItemsHeading": { "key": "severity" }, "label": "重大度" } ], "items": [ { "severity": "高", "description": "適用されている CSP はありません" } ] } }, "script-treemap-data": { "id": "script-treemap-data", "title": "Script Treemap Data", "description": "Used for treemap app", "score": null, "scoreDisplayMode": "informative", "details": { "type": "treemap-data", "nodes": [ { "name": "chrome-extension://mnojpmjdmbbfmejpflffifhffcmidifd/out/content_element_picker.bundle.js", "resourceBytes": 5861, "unusedBytes": 5241 }, { "name": "chrome-extension://aapbdbdomjkkjkaonfhkkikfgjllcleb/bubble_compiled.js", "resourceBytes": 145616, "unusedBytes": 115059 } ] } }, "pwa-cross-browser": { "id": "pwa-cross-browser", "title": "サイトがクロスブラウザに対応している", "description": "多くのユーザーに見てもらえるようにするには、サイトがすべての主要ブラウザで機能するようにします。[クロスブラウザの互換性の詳細](https://developer.chrome.com/docs/lighthouse/pwa/pwa-cross-browser/)", "score": null, "scoreDisplayMode": "manual" }, "pwa-page-transitions": { "id": "pwa-page-transitions", "title": "ページの切り替え時、ネットワークが遅いという印象を与えない", "description": "遅いネットワークであってもタップしたときに画面がすばやく切り替われば、ユーザーはパフォーマンスの遅さを感じにくくなります。[ページの切り替えの詳細](https://developer.chrome.com/docs/lighthouse/pwa/pwa-page-transitions/)", "score": null, "scoreDisplayMode": "manual" }, "pwa-each-page-has-url": { "id": "pwa-each-page-has-url", "title": "ページごとに 1 つの URL を使用している", "description": "ソーシャル メディアで共有できるように、個々のページが URL によるディープリンクに対応していることと、それらの URL が固有であることを確認してください。[ディープリンクの提供についての詳細](https://developer.chrome.com/docs/lighthouse/pwa/pwa-each-page-has-url/)", "score": null, "scoreDisplayMode": "manual" }, "accesskeys": { "id": "accesskeys", "title": "`[accesskey]` の値は一意です", "description": "アクセスキーは、ユーザーがページの特定の部分にすばやくフォーカスを移動するときに使います。正しく操作できるよう、各アクセスキーは一意にする必要があります。[アクセスキーの詳細](https://dequeuniversity.com/rules/axe/4.6/accesskeys)", "score": null, "scoreDisplayMode": "notApplicable" }, "aria-allowed-attr": { "id": "aria-allowed-attr", "title": "`[aria-*]` 属性は役割と一致しています", "description": "各 ARIA `role` は、`aria-*` 属性の特定のサブセットに対応しています。これらが一致しない場合、`aria-*` 属性は無効になります。[ARIA 属性をロールと照合する方法の詳細](https://dequeuniversity.com/rules/axe/4.6/aria-allowed-attr)", "score": null, "scoreDisplayMode": "notApplicable" }, "aria-command-name": { "id": "aria-command-name", "title": "`button`、`link`、`menuitem` 要素にユーザー補助機能向けの名前が設定されています", "description": "要素にユーザー補助機能用の名前が設定されていない場合、スクリーン リーダーでは一般名で読み上げられるため、スクリーン リーダーのみを使用するユーザーには用途がわかりません。[コマンド要素にアクセスしやすくする方法の詳細](https://dequeuniversity.com/rules/axe/4.6/aria-command-name)", "score": null, "scoreDisplayMode": "notApplicable" }, "aria-hidden-body": { "id": "aria-hidden-body", "title": "ドキュメントの `` に `[aria-hidden=\"true\"]` は設定されていません", "description": "スクリーン リーダーなどの支援技術は、ドキュメントの `` に `aria-hidden=\"true\"` が設定されていると、正常に動作しません。[`aria-hidden` がドキュメントの本文に与える影響についての詳細](https://dequeuniversity.com/rules/axe/4.6/aria-hidden-body)", "score": 1, "scoreDisplayMode": "binary", "details": { "type": "table", "headings": [], "items": [] } }, "aria-hidden-focus": { "id": "aria-hidden-focus", "title": "`[aria-hidden=\"true\"]` 要素にフォーカス可能な子要素は含まれていません", "description": "フォーカス可能な子要素が `[aria-hidden=\"true\"]` 要素内にある場合、スクリーン リーダーなどの支援技術を使用するユーザーはこれらの操作可能な要素を使用できません。[`aria-hidden` がフォーカス可能な要素に与える影響の詳細](https://dequeuniversity.com/rules/axe/4.6/aria-hidden-focus)", "score": null, "scoreDisplayMode": "notApplicable" }, "aria-input-field-name": { "id": "aria-input-field-name", "title": "ARIA 入力フィールドにユーザー補助機能向けの名前が設定されています", "description": "入力フィールドにユーザー補助機能用の名前が設定されていない場合、スクリーン リーダーでは一般名で読み上げられるため、スクリーン リーダーのみを使用するユーザーには用途がわかりません。[入力フィールドのラベルの詳細](https://dequeuniversity.com/rules/axe/4.6/aria-input-field-name)", "score": null, "scoreDisplayMode": "notApplicable" }, "aria-meter-name": { "id": "aria-meter-name", "title": "ARIA `meter` 要素にユーザー補助機能向けの名前が設定されています", "description": "メーター要素にユーザー補助機能用の名前が設定されていない場合、スクリーン リーダーでは一般名で読み上げられるため、スクリーン リーダーのみを使用するユーザーには用途がわかりません。[`meter` 要素に名前を付ける方法の詳細](https://dequeuniversity.com/rules/axe/4.6/aria-meter-name)", "score": null, "scoreDisplayMode": "notApplicable" }, "aria-progressbar-name": { "id": "aria-progressbar-name", "title": "ARIA `progressbar` 要素にユーザー補助機能向けの名前が設定されています", "description": "`progressbar` 要素にユーザー補助機能用の名前が設定されていない場合、スクリーン リーダーでは一般名で読み上げられるため、スクリーン リーダーのみを使用するユーザーには用途がわかりません。[`progressbar` 要素にラベルを付ける方法の詳細](https://dequeuniversity.com/rules/axe/4.6/aria-progressbar-name)", "score": null, "scoreDisplayMode": "notApplicable" }, "aria-required-attr": { "id": "aria-required-attr", "title": "`[role]` に必須の `[aria-*]` 属性がすべて指定されています", "description": "一部の ARIA ロールには、スクリーン リーダーに要素の状態を伝える必須の属性があります。[ロールと必須属性の詳細](https://dequeuniversity.com/rules/axe/4.6/aria-required-attr)", "score": null, "scoreDisplayMode": "notApplicable" }, "aria-required-children": { "id": "aria-required-children", "title": "ARIA `[role]` が指定されている要素に、特定の `[role]` を含む必要な子がすべて指定されています。", "description": "目的のユーザー補助機能を実行するには、一部の ARIA 親ロールに特定の子ロールを含める必要があります。[ロールと必要な子要素の詳細](https://dequeuniversity.com/rules/axe/4.6/aria-required-children)", "score": null, "scoreDisplayMode": "notApplicable" }, "aria-required-parent": { "id": "aria-required-parent", "title": "`[role]` は必須の親要素に含まれています", "description": "想定されるユーザー補助機能が適切に動作するためには、一部の ARIA 子ロールは、特定の親ロールに含まれている必要があります。[ARIA ロールと必要な親要素の詳細](https://dequeuniversity.com/rules/axe/4.6/aria-required-parent)", "score": null, "scoreDisplayMode": "notApplicable" }, "aria-roles": { "id": "aria-roles", "title": "`[role]` の値は有効です", "description": "目的のユーザー補助機能を実行するには、ARIA ロールに有効な値を指定してください。[有効な ARIA ロールの詳細](https://dequeuniversity.com/rules/axe/4.6/aria-roles)", "score": null, "scoreDisplayMode": "notApplicable" }, "aria-toggle-field-name": { "id": "aria-toggle-field-name", "title": "ARIA 切り替えフィールドにユーザー補助機能向けの名前が設定されています", "description": "切り替えフィールドにユーザー補助機能用の名前が設定されていない場合、スクリーン リーダーでは一般名で読み上げられるため、スクリーン リーダーのみを使用するユーザーには用途がわかりません。[切り替えフィールドの詳細](https://dequeuniversity.com/rules/axe/4.6/aria-toggle-field-name)", "score": null, "scoreDisplayMode": "notApplicable" }, "aria-tooltip-name": { "id": "aria-tooltip-name", "title": "ARIA `tooltip` 要素にユーザー補助機能向けの名前が設定されています", "description": "ツールチップ要素にユーザー補助機能用の名前が設定されていない場合、スクリーン リーダーでは一般名で読み上げられるため、スクリーン リーダーのみを使用するユーザーには用途がわかりません。[`tooltip` 要素に名前を付ける方法の詳細](https://dequeuniversity.com/rules/axe/4.6/aria-tooltip-name)", "score": null, "scoreDisplayMode": "notApplicable" }, "aria-treeitem-name": { "id": "aria-treeitem-name", "title": "ARIA `treeitem` 要素にユーザー補助機能向けの名前が設定されています", "description": "`treeitem` 要素にユーザー補助機能用の名前が設定されていない場合、スクリーン リーダーでは一般名で読み上げられるため、スクリーン リーダーのみを使用するユーザーには用途がわかりません。[`treeitem` 要素のラベル付けの詳細](https://dequeuniversity.com/rules/axe/4.6/aria-treeitem-name)", "score": null, "scoreDisplayMode": "notApplicable" }, "aria-valid-attr-value": { "id": "aria-valid-attr-value", "title": "`[aria-*]` 属性に有効な値が指定されています", "description": "支援技術（スクリーン リーダーなど）で、無効な値が指定された ARIA 属性を解釈できません。[ARIA 属性で有効な値の詳細](https://dequeuniversity.com/rules/axe/4.6/aria-valid-attr-value)", "score": null, "scoreDisplayMode": "notApplicable" }, "aria-valid-attr": { "id": "aria-valid-attr", "title": "`[aria-*]` 属性は有効で、スペルミスもありません", "description": "支援技術（スクリーン リーダーなど）で、無効な名前が指定された ARIA 属性を解釈できません。[有効な ARIA 属性の詳細](https://dequeuniversity.com/rules/axe/4.6/aria-valid-attr)", "score": null, "scoreDisplayMode": "notApplicable" }, "button-name": { "id": "button-name", "title": "ボタンにユーザー補助機能名が指定されています", "description": "ボタンにユーザー補助機能名が指定されていない場合、スクリーン リーダーでは「ボタン」と読み上げられるため、スクリーン リーダーを使用しているユーザーはボタンの用途がわからず、使用することができなくなります。[ボタンにアクセスしやすくするための方法の詳細](https://dequeuniversity.com/rules/axe/4.6/button-name)", "score": null, "scoreDisplayMode": "notApplicable" }, "bypass": { "id": "bypass", "title": "ページに見出し、スキップリンク、またはランドマーク領域が設定されています", "description": "重複するコンテンツをスキップする手段を追加すると、キーボードを使ったページの移動を効率化できます。[ブロックの回避についての詳細](https://dequeuniversity.com/rules/axe/4.6/bypass)", "score": null, "scoreDisplayMode": "notApplicable" }, "color-contrast": { "id": "color-contrast", "title": "背景色と前景色には十分なコントラスト比があります", "description": "低コントラストのテキストを使用すると、多くのユーザーは読むことが困難または不可能になります。[十分なカラー コントラストを確保する方法の詳細](https://dequeuniversity.com/rules/axe/4.6/color-contrast)", "score": null, "scoreDisplayMode": "notApplicable" }, "definition-list": { "id": "definition-list", "title": "`

` には、正しく順序付けられた `

` および `

` グループ、`